When Net Positive Suction Head available (NPSHa) drops below required (NPSHr), cavitation destroys impellers, seals, and bearings. This causes vibration, energy waste, flow reduction, and sudden pump failure—disrupting HVAC circulation, water treatment, and industrial processes. EKG (Malaysia) Sdn Bhd delivers NPSH assessment, pump optimization, and system modifications to eliminate cavitation and maximize pump lifespan.
Our NPSH-optimized solutions serve:
HVAC Chilled Water & Condenser Water Systems
Water Treatment & Industrial Process Pumps
Fire Protection & Booster Systems
Municipal & Sewage Pump Stations
Insufficient Suction Head – Pump located above source with inadequate positive pressure
Excessive Suction Lift – Long pipe runs or high vertical lift creating vacuum conditions
High Fluid Temperature – Increased vapor pressure reduces NPSHa
Blocked Suction Strainers – Restricted flow causes pressure drop
Undersized Suction Piping – Excessive friction losses at the pump inlet
Poor System Design – Sharp bends, air pockets, or undersized tanks
1. NPSH Assessment & System Audit
On-site NPSHa measurement vs. pump NPSHr verification
Suction pressure, temperature, and flow analysis
Vibration & cavitation signature detection
2. Hydraulic System Modifications
Suction pipe resizing and re-routing
Pump lowering or tank elevation adjustments
Suction strainer upgrades and air elimination solutions
3. Pump Selection & Impeller Trimming
Replace undersized pumps with NPSH-optimized models
Impeller trimming to reduce NPSHr
Low-NPSH pump retrofits for problem installations
4. Cavitation Damage Repair
Impeller rebuilding and shaft realignment
Seal and bearing replacement
Casing repair and surface reconditioning
5. Variable Speed Drive (VSD) Integration
Match pump speed to actual system demand
Reduce NPSHr at lower flow conditions
Prevent cavitation during start-up and part-load operation
6. 24/7 Emergency Pump Failure Response
On-site cavitation troubleshooting
Temporary pumping solutions available
Minimize production and cooling downtime
Pump & Hydraulic Specialists – Expert in cavitation diagnosis, NPSH calculation, and system hydraulics
ISO-Certified Repairs & Retrofits – Precision machining and quality-assured component replacement
Cost-Effective System Upgrades – Eliminate cavitation without full pump replacement where possible
Fast Mobilisation – Minimise disruption to plant operations
Energy & Maintenance Savings – Reduce power consumption and extend pump overhaul intervals
Ensure stable flow, lower energy bills, and maximum pump reliability with EKG (Malaysia) Sdn Bhd’s NPSH-optimized pump solutions. Our ISO-certified team delivers precision diagnostics, hydraulic corrections, and cavitation repair to keep your systems running failure-free.
Book your NPSH pump audit today! Contact us now for a free consultation and expert recommendations on eliminating cavitation in your facility.
More detail about EKG M & E SDN. BHD.
Malaysia
